NOx Sensor for Audi A6 / S6 / A7 / S7 3.0 TDI Quattro – OEM Replacement

High-Quality OEM NOx Sensor for Reliable Emissions Performance

Restore your vehicle's emissions system performance with this premium NOx Sensor, designed for Audi A6, S6, A7, and S7 3.0 TDI Quattro diesel models. Manufactured to OEM specifications and fully tested for quality and reliability, this sensor helps maintain optimal engine efficiency, fuel economy, and emissions compliance.

A faulty NOx sensor can trigger engine warning lights, increase fuel consumption, and affect overall vehicle performance. This replacement sensor provides a dependable solution for restoring proper operation.

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Key Features

• Designed for Audi A6, S6, A7, and S7 3.0 TDI Quattro models

• OEM-quality replacement NOx sensor

• Direct-fit installation

• Helps reduce harmful emissions

• Supports optimal fuel efficiency

• Improves engine management system performance

• Resolves common NOx sensor fault codes

• 100% tested before shipping

• Durable construction for long service life

• Suitable for replacement and repair applications

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Product Description

This OEM NOx Sensor is engineered to meet or exceed original equipment specifications, ensuring reliable performance and seamless compatibility with Audi diesel vehicles. It continuously monitors nitrogen oxide levels in the exhaust system, allowing the engine control unit to optimize combustion and emissions control.

When a NOx sensor fails, it may cause warning lights, reduced engine performance, increased fuel consumption, and emissions-related faults. Replacing a defective sensor with this high-quality OEM replacement helps restore proper vehicle operation and maintain compliance with emissions standards.

Manufactured from premium materials and thoroughly tested, this sensor delivers dependable performance under demanding driving conditions.

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Specifications

Specification	Details
Product Name	NOx Sensor
Sensor Type	Nitrogen Oxide (NOx) Sensor
Brand	OEM
Model Number	5WK97211
OEM Number	5WK9 7211
OE Number	4G0907807H
Alternative OE Numbers	4G0907807C, 4G0907807R, 4G09078070
Vehicle Compatibility	Audi A6 / S6 / A7 / S7 3.0 TDI Quattro
Condition	New
Application	Automotive Emissions System
Quality	100% Tested
Size	Standard OEM Size
Purpose	Replacement / Repair
Delivery Time	7–15 Days
Warranty	12 Months
Place of Origin	Guangdong, China

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Compatible Part Numbers

• 5WK97211

• 5WK9 7211

• 4G0907807H

• 4G0907807C

• 4G0907807R

• 4G09078070

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Package Includes

• 1 × NOx Sensor

• Ready for Direct Installation

Why Choose This NOx Sensor?

✔ OEM-quality replacement part
✔ Accurate emissions monitoring
✔ Helps restore engine performance
✔ Supports fuel efficiency and emissions compliance
✔ Direct-fit installation
✔ Fully tested before shipment
✔ 12-month warranty included

Keep your Audi A6, S6, A7, or S7 3.0 TDI Quattro running efficiently with this high-quality OEM NOx Sensor, designed for dependable performance and long-lasting reliability. 🚗🔧✨